SUMMARY

12:01 UTC | 05:01 PT We are happy to report the issues affecting Talk on Pod3 have been resolved.

11:26 UTC | 04:26 PT We are investigating issues with dropped calls for Pod 3 customers. Next update on status.zendesk.com

POST-MORTEM

Talk experienced elevated levels of dropped calls due to intermittent failed/slow connections to a VM host. 2 VM hosts were found to be suffering from high IO wait times due to high levels of activity on the hypervisor where the two VMs are hosted. I/O was temporarily alleviated in the hypervisor by taking some VMs out of rotation and the incident subsided. In order to prevent this from happening again in the future, we will be moving the VMs to a new hypervisor, improve hypervisor monitoring and review hypervisor capacity on POD 3.

FOR MORE INFORMATION

For current system status information about your Zendesk, check out our system status page. During an incident, you can also receive status updates by following @ZendeskOps on Twitter. The summary of our post-mortem investigation is usually posted here a few days after the incident has ended. If you have additional questions about this incident, please log a ticket with us.